I have been able to read and write to Mifare tags however I cannot find the block location for the NDEF information on a NTAG215. the UID is readable but I cannot get any other info on the tag.

I access Mifare with this
rfid0.readBlockStr(1, keyB=[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF])
and its working

Trying to find the right NDEF block location
rfid0.readBlockStr(4, keyB=[0x03, 0x04, 0x05, 0x06, 0x07, 0x08])

Any pointers would be awesome.

thanks